You've never done this and you've never seen a workout like this - that we can almost guarantee!
Norwegian track and field athlete Ezinne Okparaebo's Instagram account went viral after posting this video of her stair-jump exercise. It's amazing how easy she makes this look, though standing at the bottom of a flight of stairs would make anyone be amazed at this feat. It's not surprising to learn that this 27-year old is Norway's fastest woman of all time and a two-time Olympian.